From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Report page discussing the efficiency and cost of a tube shape, pending further tests.
| Identifier | ExFiles\Box 16\2\ Scan008 | |
| Date | 21th April 1931 guessed | |
| - 2 - Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/KT.Pl.4.H.contd. we may be able to get adequate efficiency without this somewhat more costly tube shape. A further report will be sent as soon as we can complete the tests. Hs{Lord Ernest Hives - Chair}/rm.{William Robotham - Chief Engineer} | ||